chore(deps): bump proc-macro-crate from 3.3.0 to 3.4.0 (#849)

Bumps [proc-macro-crate](https://github.com/bkchr/proc-macro-crate) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/bkchr/proc-macro-crate/releases)
- [Commits](bkchr/proc-macro-crate@v3.3.0...v3.4.0)

---
updated-dependencies:
- dependency-name: proc-macro-crate
  dependency-version: 3.4.0
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]